html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

.login_container {
    background: url("static/admin/images/9.jpg") fixed;
    background-size: cover;
    background-attachment: fixed;
    height: 100%;
}

.login_box {
    width: 450px;
    height: 300px;
    background: rgba(255,255,255,0.3);
    border-radius: 5px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}


.container {
    margin-top: 5px;
}

#msg {
    font-size: 14px;
    color: red;
    text-align: center;
}

.z-text-roll {
    /* 最大宽度 */
    width: 100%;
    /* 不允许换行 */
    white-space: nowrap;
    /* 超出隐藏 */
    overflow: hidden;
    position: relative;
    --gap: 20px;
    --time: 3s;
    margin-top: 2px;
}
.z-text-roll>span {
    position: relative;
    display: inline-block;
}
.z-text-roll>span::before {
    content: attr(data-text);
    position: relative;
    left: 0;
}
.z-text-roll.z-is-roll>span::before {
    --index:0;
    animation: z-text-anim var(--time) linear infinite;
}
.z-text-roll.z-is-roll>span::after {
    content: attr(data-text);
    position: absolute;
    left: calc(100% + var(--gap));
    --index:1;
    animation: z-text-anim var(--time) linear infinite;
}

@keyframes z-text-anim {
    0% {
        /* --index 为第几个文本 */
        left: calc((100% + var(--gap)) * var(--index));
    }
    100% {
        left: calc((100% + var(--gap)) * (var(--index) - 1));
    }
}
/* 更多 */
.z-text-roll>span>font {
    display: none;
}
.z-text-roll.z-is-roll>span>font {
    display: inline-block;
    position: absolute;
    left: calc((100% + var(--gap)) * 2);
    --index:2;
    animation: z-text-anim var(--time) linear infinite;
}
.z-text-roll.z-is-roll>span>font>span {
    margin-right: var(--gap);
}

#characters{
    font-width: 200;
    font-size: 20px;
    color: #3d3434;
}